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(No Model.)

J. STAUDER. MANUFACTURE OF BRUSHES.

No. 527,251. Patented Oct. 9, 1894.

THENQRRIS PETERS co, md'rou'rm, WASKINGTON. 0, 12V

,UNITED STATES f PATENT OFFICE.

JOSEPH STAUDER, OF BERLIN, GERMANY.

MANUFACTURE OF BRUSHES.

SPECIFICATION forming part of Letters Patent No. 527,251, dated October 9, 1894.

Application filed June 21, 1893. Serial 110.47%,383. (No model.) Patented in Austria-Hungary April 24, 1893, No. 2.295 and No. 3,806; in France April 25, 1893,110- 229,595, and in England May 19, 1893, No. 10,041.

1 Britain May 19, 1893, No. 10,041; in Austria- Hungary April 24, 1893, No. 2,295 and No. 3,806, and in France April 25, 1893, No.

. 229,595,) of which the following is a specification.

My invention relates to the manufacture of brushes of various kinds but of the general class of brushes consisting of a number of tufts or bristles arranged at greater or less intervals apart.

The invention has reference to the mode of securing the bristles to the brush, in such a manner as to be readily removed and replaced, but not liable to be displaced accidentally.

My invention consists broadly in assembling the bristles to form the completed brush, into bundles or tufts, by inclosing one extremity of the tuft in a socket.

The invention consists further in assembling a number of the said bundles together and securing the same by a temporary fastening to the back or other part of the brush.

The invention further consists of means for preventing the bristles in each separate bundle from clogging.

In order to comprehend the nature of my invention, attention is directed to the accompanying drawings, forming a part of this specification, and in which- Figure 1 is a rear elevation, partly in section, of a circular brush. Fig. 2 is a front elevation of the. same. Fig. 3 is a sectional view of Fig. 1. Fig. 4 is a sectional view of Fig. 2. Fig. 5 is an end view of the front and rear portion of the brush together. Fig. 6 is a side elevation of a tuft of bristles. Fig. 7 is a top view of the same.

In all of the several views like parts are designated by the same letters of reference.

The brush illustrated in Figs. 1, 2,3, 4, and 5, is disk shaped and provided with a number of bristles along the periphery. This brush consists of the disks A, and B. The naves A, B, are inserted one into the other in the manner indicated in Fig. 5 and are fastened together by screws inserted through the holes w, in the disks. Theinnersurfaces of the disks A, and B are furnished near the periphery with pins, pegs or studs, 0, which, when the disks are screwed together, come opposite to one another and constitute separate compartments for the tops of the bristles. Between the pins 0 are raised portions or bosses C which, when the disks are screwed together, form a rest or mounting for the tufts of bristles and together with the pins 0, serve to retain the tufts rigidly in position.

Figs. 6 and 7 illustrate a tuft of bristles of the kind suitable for applying to the disks A and B hereinbefore described. The said tuft is composed of a number of bristles D, in-

serted in the socket D of sheet metal or other I elastic material provided with the contracted portion D The metal socket D is adapted to be inserted between the two plates A and B, the pins 0, 0, being adjacent to the contracted portions D D of the sockets.

In order to increase the life of the brushes and render the bristles capable of service after being partially worn away, and to prevent the partly worn bristles becoming clogged or stuck together by use, there is inserted in the manner shown in Fig. 7, an insertion or core, D of a general S-shape, made of metal or other elastic material. .By this means the bristles are caused to spread apart, so that when the tufts of bristles have become worn away to half their length or even to agreater length, they will still be good for use. In order to more rigidly secure the metallic sockets D between the pins 0, I arrange a semi circular projecting rib 0 upon both plates A and B between the pins 0. These ribs firmly clamp and securely hold the sockets D when the disks are secured together. I have described in detail this way of securing the bristles to the body of the brush in order to render the invention more comprehensible; but I desire it understood that any other device may be employed, so long as the essential spirit of the invention is carried out, namely, of forming the bristles into tufts by means of a suitable socket and securing the socket removably within a suitable backing. Bristles for these brushes may be made of any material desired, such as steel ports orbearings independent of one another, wire or narrow strips of steel, of animal or of for the separation of the tufts of bristles, subvegetable fiber. stantially as and for the purpose described.

Having now described my invention, what In witness whereof I have hereunto signed 5 I claim as new, and desire to secure by Letters my name in the presence of two subscribing 15 Patent, is- I witnesses.

A brush in which the tufts of bristles are JOSEPH STAUDER. held together by disks adapted to be secured Witnesses: together, said disks being secured'by pinsO, ARTHUR BAERMANN,

1c and rings or fillets C, and constituting sup- ALFRED MEISTER. 

